Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Joint Analysis and Optimization Method for the Static and Dynamic Characteristics of Gearbox Boxes in Rail Transit Vehicles

A technology for rail transit vehicles, static and dynamic characteristics, applied in multi-objective optimization, design optimization/simulation, combustion engine, etc. The effect of avoiding blindness, shortening computing time, and reducing computing cost

Active Publication Date: 2022-06-28
ZHEJIANG UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the problem that the existing technology generally only optimizes one of the static characteristics or dynamic characteristics, fails to fully consider the two characteristics of the box body, pays too much attention to light weight in the box structure optimization process, and does not fully optimize the box structure The problem of static and dynamic characteristics of the gearbox for rail transit vehicles provides a joint analysis and optimization method for the static and dynamic characteristics of the gearbox for rail transit vehicles, comprehensively analyzes the static and dynamic characteristics of the gearbox for rail transit vehicles On the basis of a comprehensive analysis of the static and dynamic characteristics of the box, through two topology optimizations, not only the mechanical properties of the gearbox box under complex working conditions are improved, but also the multi-order natural frequency of the box is improved. , Avoid resonance, significantly improve the safety, reliability and vibration characteristics of the box, and have positive significance for improving the performance of rail transit vehicles

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Joint Analysis and Optimization Method for the Static and Dynamic Characteristics of Gearbox Boxes in Rail Transit Vehicles
  • A Joint Analysis and Optimization Method for the Static and Dynamic Characteristics of Gearbox Boxes in Rail Transit Vehicles
  • A Joint Analysis and Optimization Method for the Static and Dynamic Characteristics of Gearbox Boxes in Rail Transit Vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0056] Example: a joint analysis and optimization method for the static and dynamic characteristics of the gearbox of a rail transit vehicle, such as figure 1 shown, including:

[0057] S1: Identify the modal parameters of the gearbox casing. The specific steps are as follows:

[0058] S11: Geometric model establishment, according to the parts drawings of the upper box and lower box of the rail transit gearbox, use SolidWorks software to establish the corresponding 3D geometric model;

[0059] S12: Geometry cleanup, using the connection and reorganization function of the SolidWorks software to synthesize the upper box and the lower box into a single entity, and delete small rounded corners and small threaded holes and other structures that have no significant impact on the follow-up;

[0060] S13: Mesh division, import the geometric model into the finite element analysis software ANSYS Workbench, and use ANSYS Workbench to perform tetrahedral mesh division on the geometric mo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention mainly solves the problem that the existing technology generally only optimizes one of the static characteristics or dynamic characteristics, fails to fully consider the two characteristics of the box body, pays too much attention to light weight in the box structure optimization process, and does not fully optimize the box structure The problem of static and dynamic characteristics of the gearbox for rail transit vehicles provides a joint analysis and optimization method for the static and dynamic characteristics of the gearbox for rail transit vehicles, comprehensively analyzes the static and dynamic characteristics of the gearbox for rail transit vehicles On the basis of a comprehensive analysis of the static and dynamic characteristics of the box, through two topology optimizations, not only the mechanical properties of the gearbox box under complex working conditions are improved, but also the multi-order natural frequency of the box is improved. , Avoid resonance, significantly improve the safety, reliability and vibration characteristics of the box, and have positive significance for improving the performance of rail transit vehicles.

Description

technical field [0001] The invention relates to the field of gearbox design, in particular to a combined analysis and optimization method for static and dynamic characteristics of a gearbox casing. Background technique [0002] Gearbox is an important basic component in rail transit vehicles, which plays the role of speed change and torque change. Rail transit vehicle gearboxes are subject to non-constant heavy loads and severe vibrations during high-speed operation, and are prone to failures such as box cracking. According to statistics, more than half of the mechanical failures of rail transit vehicles come from gearboxes, and the reliability of the gearbox structure has a huge impact on rail transit vehicles. [0003] At present, there is no optimization method for the gearbox box of rail transit vehicles at home and abroad. The prior art most closely related to the invention of the present invention is mainly an optimization method for general industrial product boxes....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15G06F30/23G06F111/06G06F119/14
CPCY02T10/40
Inventor 童水光江一波童哲铭
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com